Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Grok 4.1 Fast
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LFM2.5-1.2B-Thinking
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Benchmark data for Grok 4.1 Fast and LFM2.5-1.2B-Thinking is coming soon on BenchLM.
Grok 4.1 Fast
LFM2.5-1.2B-Thinking
$0.2 / $0.5
$0 / $0
138 t/s
N/A
0.54s
N/A
1M
32K
Benchmark data for Grok 4.1 Fast and LFM2.5-1.2B-Thinking is coming soon on BenchLM.
BenchLM does not have sourced benchmark coverage for Grok 4.1 Fast and LFM2.5-1.2B-Thinking yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.
Grok 4.1 Fast is priced at $0.20 input / $0.50 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for LFM2.5-1.2B-Thinking. Grok 4.1 Fast has the larger context window at 1M, compared with 32K for LFM2.5-1.2B-Thinking.
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
Grok 4.1 Fast: $0.20 input / $0.50 output per 1M tokens LFM2.5-1.2B-Thinking: $0.00 input / $0.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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